Another one for future searches. I needed comfortable access to the rear. As other members have done I made up some drive-onto blocks. Each one has three pieces (4', 3', 2') for a total of 36' of 2X10s. This setup lifts the back 4 1/2" so along with the 12" Harbor Freight receiver hitch tubing the rig is nice and high and easy to work under. <br/>jor<br/><br/>